alert('验证码错误！');history.go(-1);");
}elseif($_SESSION['pass_error']>5) {
@header('Content-Type: text/html; charset=UTF-8');
exit("");
}elseif($user==$conf['admin_user'] && $pass==$conf['admin_pwd']) {
//$city=get_ip_city($clientip);
$DB->exec("insert into `pre_log` (`uid`,`type`,`date`,`ip`,`city`) values (0,'登录后台','".$date."','".$clientip."','".$city."')");
$session=md5($user.$pass.$password_hash);
$expiretime=time()+604800;
$token=authcode("{$user}\t{$session}\t{$expiretime}", 'ENCODE', SYS_KEY);
setcookie("admin_token", $token, time() + 604800);
@header('Content-Type: text/html; charset=UTF-8');
exit("");
}elseif ($pass != $conf['admin_pwd']) {
$_SESSION['pass_error']++;
@header('Content-Type: text/html; charset=UTF-8');
exit("");
}
}elseif(isset($_GET['logout'])){
setcookie("admin_token", "", time() - 604800);
@header('Content-Type: text/html; charset=UTF-8');
exit("");
}elseif($islogin==1){
exit("");
}
$title='用户登录';
include './head.php';
?>